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<TITLE>Magic-7.3 Command Reference</TITLE>
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<H2>render</H2>
<HR>
Specify properties of CIF layer rendering
<HR>
    render name [height thick [style]]

<H3>Usage:</H3>
   <BLOCKQUOTE>
      <B>render</B> <I>name</I> [<I>height thick</I> [<I>style</I>]] <BR><BR>
      <BLOCKQUOTE>
         where <I>name</I> is the CIF name of a CIF or GDS layer,
	 <I>height</I> and <I>thick</I> are values for the height
	 above substrate of the layer bottom, and the total layer
	 thickness, and <I>style</I> is a known display style from
	 the <TT>.dstyle</TT> file.
      </BLOCKQUOTE>
   </BLOCKQUOTE>

<H3>Summary:</H3>
   <BLOCKQUOTE>
      The <B>render</B> command can be used to replace or complement
      the <B>render</B> lines in the <B>cifoutput</B> section of a
      <B>magic</B> technology file.  These lines specify, for each
      CIF/GDS layer to be drawn, a height and thickness value, and
      a style to use when drawing the layer. <P>

      Note that normally, <B>magic</B> styles are used to draw
      internal tile types, not CIF/GDS layers.  Thus, each of these
      layers must be mapped to a style before magic can draw them.
      Without specification, the style defaults to zero (actual output
      dependent on the contents of the <TT>.dstyle</TT> file), and
      height and thickness also default to zero.
   </BLOCKQUOTE>

<H3>Implementation Notes:</H3>
   <BLOCKQUOTE>
      <B>render</B> is implemented as a built-in <B>wind3d</B>
	window command in <B>magic</B>.  It can only be invoked from
	a window created with the <B>specialopen wind3d</B> command,
	or the <B>render</B> procedure.  Note that the <B>wind3d</B>
	window is only available when magic is compiled with the OpenGL
	graphics option and invoked with <B>magic -d OGL</B>. <P>
	
      Note that macros of the <B>wind3d</B> window are hard-coded,
	and cannot be changed with the <B>macro</B>, <B>gmacro</B>, or
	<B>imacro</B> commands.  There is no "<TT>:</TT>" macro for
	entering commands; to enter commands from the command-line,
	use the <A HREF=../tk_path_name.html> <I>tk_path_name</I></A>
	command.  The default Tk path name of the <B>wind3d</B> window
	is "<TT>.magic3d</TT>".
   </BLOCKQUOTE>

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<P><I>Last updated:</I> October, 2004<P>
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